Steps to reproduce this issue

1. create a new user for mariadb/mysql and leave password empty
   the user that is created has a yellow warning next to the icon
2. when hovering over the user a red label appears at the bottom 'This user has an empty password.'
3. now give the new user a password

Current behavior

the yellow warning will disappear
the red label will still appear on mouse hover until the User manager is closed and reopened

Expected behavior

the red label stops appearing on mouse hover even without reopening User manager

Environment

• HeidiSQL version:
  9.5.0.5382
• Database system and version:
  MySQL 5.7.23
• Operating system:
  Win10 1803